Foldable knife



FIG. 1 is a perspective view of my new design.

FIG. 2 is a top view thereof.

FIG. 3 is a side view thereof.

FIG. 4 is another side view thereof.

FIG. 5 is a bottom view thereof.

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof.

The broken lines showing a blade holder is included for the purposes of illustrating environmental structure and forms no part of the claimed design. 

The ornamental design for a foldable knife, substantially as shown and described. 